Information Retrieval

Information retrieval is the activity of obtaining information resources relevant to an information need from a collection of information resources. Searches can be based on metadata or on full-text (or other content-based) indexing.Automated information retrieval systems are used to reduce what has been called "information overload". Many universities and public libraries use IR systems to provide access to books, journals and other documents. Web search engines are the most visible IR applications.

… a different aspect of web search, and together they combine to provide relevant search results: Crawler: this process is the web spider that crawls the web, follows links, and retrieves content. Indexer: this process takes the content from the spider and analyses it. It also looks at the links retrieved by the spider and analyses the resulting link graph…

…) in a personalized SERPs answering to that query. I underline the personalization factor also due to the fact that the Methods and systems for improving search rankings using advertising data patent cited a good number of patents related to personalization of search as, for instance, the old Information retrieval based on historical data and the Ranking search…